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Method for determining fuel property and device for determining fuel property

A technology of fuel physical properties and fuel, which is applied in the direction of sampling devices, measuring devices, and analysis materials, and can solve problems such as complicated operations

Active Publication Date: 2012-09-26
TOHOKU UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the work is complicated

Method used

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  • Method for determining fuel property and device for determining fuel property
  • Method for determining fuel property and device for determining fuel property
  • Method for determining fuel property and device for determining fuel property

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no. 1 Embodiment approach ）

[0045] The fuel physical property determining method and the fuel physical property determining device of the present embodiment analyze the elementary reaction in the combustion reaction of a fuel whose octane number is unknown (hereinafter referred to as unknown fuel), and determine by performing simulation based on the elementary reaction. The octane number (physical property) of the unknown fuel.

[0046] Here, in order to determine a more accurate octane number, it is necessary to perform accurate simulations that reflect actual phenomena. For this reason, it is required to obtain elementary reaction data for performing correct simulations. Moreover, in reality, it is required to obtain the elementary reaction data in the shortest possible time.

[0047] Therefore, in order to meet these requirements, the fuel physical property determination method and the fuel physical property determination device of the present embodiment use a one-dimensional temperature distribution...

no. 2 Embodiment approach ）

[0183] Next, a second embodiment of the present invention will be described. In addition, in the description of the second embodiment, the description of the same parts as those of the first embodiment is omitted or simplified.

[0184] The fuel property determining device A2 of this embodiment is as follows: Figure 7As shown, the analysis conditions 15 for the simulation performed by the octane number determining unit 8 are stored in the external storage device 10 . In addition, the analysis conditions referred to here include information such as the amount of calculation allowed in the simulation (CFD analysis) performed by the octane number determination unit 8 , the type of intermediate product to be analyzed by the simulation, and the like.

[0185] and if Figure 8 As shown, the octane number determination program 14 makes the fuel property determination device A2 of this embodiment function as the analysis condition storage unit 9 a and the selection unit 9 b.

[01...

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Abstract

Disclosed is a method for determining fuel property comprising: a reaction mechanism analysis step (S1) in which elementary reactions constituting chemical reactions among a plurality of initial substances including the components of a fuel are analyzed to acquire data on the elementary reactions of the fuel; and an octane number determination step (S2) in which a simulation is conducted on the basis of the elementary reactions of the fuel to thereby calculate the combustion characteristics of the fuel and determine the octane number of the fuel on the basis of the combustion characteristics thereof.

Description

technical field [0001] The invention relates to a fuel physical property determination method and a fuel physical property determination device. This application claims the priority of Japanese Patent Application No. 2010-009369 for which it applied on January 19, 2010, The content is used here. Background technique [0002] One of the values ​​indicating the physical properties of the fuel is the octane number which is an index of the fuel's knock resistance. The octane number is 100 for isooctane with high knock resistance, and 0 for n-heptane with low knock resistance. In addition, the octane number of the fuel is a value corresponding to the volume percentage of isooctane in a mixed fuel (standard fuel) of isooctane and n-heptane having the same knock resistance of the fuel. That is, when the anti-knock performance of the fuel is the same as the above-mentioned mixed fuel whose mixing ratio of isooctane is expressed as 50% by volume, the octane number of the fuel is ex...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/22
CPCG01N33/2829G01N25/22G01N33/22G01N1/22G01N31/12
Inventor 丸田薰中村寿加藤壮一郎
Owner TOHOKU UNIV
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